A general detection device and method for detonators

Abstract

The application provides a detonator universal detection device and method, which can support single and multi-channel module testing, avoid human judgment errors and has high work efficiency; the device comprises a PDA handheld device in communication connection with a delay control module of an electronic detonator to be tested, the PDA handheld device is provided with: a communication interface module connected with the delay control module of the electronic detonator to be tested and used for realizing signal communication; a sensitivity detection module connected with the communication interface module and used for detecting whether there is a detonation signal; a control module connected with a bus voltage rising and falling module, the sensitivity detection module and the communication interface module, used for sending a control signal for bus voltage falling if a detonation signal is detected according to the signal output by the sensitivity detection module, and sending a control signal for bus voltage rising if a non-detonation signal is detected; and the bus voltage rising and falling module is used for adjusting the corresponding bus voltage according to the control signal output by the control module.

Description

Technical Field

[0001] This invention relates to the field of detonator testing technology, specifically to a general detonator testing device and method. Background Technology

[0002] With the increasingly widespread application of electronic detonators, it is necessary to test various parameters of the electronic detonator delay control module. Currently, detonator manufacturers use the step-up method for testing. However, the existing testing equipment is a single-shot measuring device, which can only perform step-up method tests on single-shot modules and cannot perform multi-shot tests. In order to implement the step-up method test, it is necessary to meet the requirement that after the current module detonates, the voltage of the next module needs to decrease by one step; or if the current module does not detonate, the voltage of the next module needs to increase by one step. However, the current equipment relies on manual voltage adjustment based on human judgment, which is not only inefficient but also susceptible to human interference and judgment errors. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a universal detonator testing device and method that supports single-channel and multi-channel module testing, avoids human error, and has high work efficiency.

[0004] This invention adopts the following technical solution: a universal detonator testing device, characterized in that it includes a PDA handheld device communicatively connected to the delay control module of the electronic detonator under test. The PDA handheld device comprises a control module, a sensitivity detection module, a bus voltage rise / fall module, and a communication interface module.

[0005] The communication interface module is connected to the delay control module of the electronic detonator under test and is used to realize signal communication;

[0006] The sensitivity detection module is connected to the communication interface module and is used to detect whether there is a detonation signal.

[0007] The control module is connected to the bus voltage rise / fall module, the sensitivity detection module, and the communication interface module. It is used to send a control signal to decrease the bus voltage if a detonation signal is detected, and to send a control signal to increase the bus voltage if no detonation signal is detected, based on the signal output by the sensitivity detection module.

[0008] The bus voltage adjustment module is used to adjust the bus voltage according to the control signal output by the control module.

[0009] Furthermore, the sensitivity detection module includes an amplifier U1, a comparator U2, capacitors C1-C6, resistors R1-R9, and a Zener diode DZ1. Pin 3 of the amplifier U1 is connected to the photodetector. One end of resistor R7 is connected to one end of resistor R1, and the other end of resistor R7 is connected to the control module. One end of resistor R5 is connected to one end of resistor R6 and one end of capacitor C5, and this connection point GS is connected to the control module. One end of resistor R8 is connected to one end of resistor R9 and one end of capacitor C6, and this connection point SG is connected to the control module.

[0010] Furthermore, the bus voltage boosting module includes a DC-DC power chip U3, operational amplifiers U4A and U4B, amplifier U5, capacitors C7 to C15, resistors R10 to R22, Zener diodes DZ2 and DZ3, and inductor L1. One end of resistor R10 is connected to one end of resistor R11, and the other end of resistor R10 is connected to the control module.

[0011] A general testing method for detonators, characterized by the following steps:

[0012] S1. The PDA handheld device communicates sequentially with the delay control module of the electronic detonator under test through the communication interface module.

[0013] S2. The sensitivity detection module detects whether there is an ignition signal. If the current electronic detonator under test is ignited by the delay control module, the ignition signal is detected. The control module outputs a control signal to the bus voltage rise and fall module to decrease the bus voltage by one step. If it is not ignited, the non-ignition signal is detected. The control module outputs a control signal to the bus voltage rise and fall module to increase the bus voltage by one step.

[0014] S3. For the next electronic detonator delay control module to be tested, repeat step S2 until all electronic detonator delay control modules to be tested have been tested.

[0015] Furthermore, the sensitivity detection module detects both light and sound signals. If the sensitivity detection module detects both light and sound signals, it determines that a detonation signal has been detected. If the sensitivity detection module detects neither light nor sound signals, it determines that a non-detonation signal has been detected.

[0016] The beneficial effects of this invention are that it can support experiments with a multi-shot electronic detonator delay control module. By detecting whether there is a detonation signal, the bus voltage can be increased or decreased accordingly through the bus voltage rise and fall module, thereby achieving automatic adjustment of the bus voltage, avoiding human judgment errors, improving work efficiency, and having good economic value. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a circuit diagram of the sensitivity detection module in this invention;

[0019] Figure 3 This is the circuit schematic of the bus voltage boosting module in this invention. Detailed Implementation

[0020] like Figures 1-3 As shown, the present invention discloses a universal detonator testing device, including a PDA handheld device communicatively connected to the delay control module of the electronic detonator under test. The PDA handheld device comprises a control module, a sensitivity detection module, a bus voltage rise / fall module, and a communication interface module.

[0021] The communication interface module is connected to the delay control module of the electronic detonator under test to realize signal communication;

[0022] The sensitivity detection module, connected to the communication interface module, is used to detect whether there is a detonation signal.

[0023] The control module is connected to the bus voltage rise / fall module, the sensitivity detection module, and the communication interface module. It is used to send a control signal to decrease the bus voltage if a detonation signal is detected based on the signal output by the sensitivity detection module, and to send a control signal to increase the bus voltage if no detonation signal is detected.

[0024] The bus voltage boosting module is used to adjust the bus voltage according to the control signals output by the control module.

[0025] The control module uses existing functional modules or devices, such as a microcontroller; the communication interface module also uses existing functional modules or devices to achieve communication and interface connection; the sensitivity detection module includes amplifier U1, comparator U2, capacitors C1-C6, resistors R1-R9, and Zener diode DZ1. Pin 3 of amplifier U1 is connected to a photodetector (not shown in the figure), which can use an IRM1738 chip; amplifier U1 and comparator U2 both use existing chips; one end of resistor R7 is connected to one end of resistor R1, and the other end of resistor R7 is connected to the microcontroller; one end of resistor R5 is connected to one end of resistor R6 and one end of capacitor C5, and this connection point GS is connected to the microcontroller; one end of resistor R8 is connected to one end of resistor R9 and one end of capacitor C6, and this connection point SG is connected to the microcontroller;

[0026] In the sensitivity detection module, the photodetector receives the light-sensing signal and compares the light-sensing signal with the light-sensing sensitivity voltage (i.e., the comparator U2). Figure 2(DAC output in the microcontroller) When the photosensitive signal does not detect the detonation signal, the photosensitive signal is greater than the photosensitive voltage, and the comparator U2 outputs a high level to the GS pin connected to the microcontroller; when the photosensitive signal detects the detonation signal, the photosensitive signal will be less than the photosensitive voltage, and the comparator U2 outputs a low level to the GS pin connected to the microcontroller.

[0027] Figure 2 In this circuit, GD+ and GD- serve as the connection terminals for the optoelectronic receiver, while the SN terminal can serve as the connection terminal for the audio receiver, which can utilize existing chip devices; the DAC terminal is connected to the microcontroller.

[0028] The SN signal is an acoustic signal. When an explosion sound is detected, it outputs a low level, which is then transmitted to the SG pin connected to the microcontroller. When no explosion sound is detected, it outputs a high level and is also transmitted to the SG pin of the microcontroller. Specifically, if the sensitivity detection module detects both the light and acoustic signals, it determines that an explosion signal has been detected. If the sensitivity detection module detects neither the light nor the acoustic signal, it records that a non-explosion signal has been detected.

[0029] The bus voltage boost / buck module includes a DC-DC power chip U3, operational amplifiers U4A and U4B, amplifier U5, capacitors C7 to C15, resistors R10 to R22, Zener diodes DZ2 and DZ3, and inductor L1. One end of resistor R10 is connected to one end of resistor R11, and the other end of resistor R10 is connected to the microcontroller. The DC-DC power chip U3 is an MT3608L chip.

[0030] In the bus voltage boosting module, DAC1 is the DAC pin of the microcontroller. When the microcontroller receives a detonation signal, it adjusts the DAC output to decrease the bus voltage by one step. When the microcontroller receives a non-detonation signal, it adjusts the DAC output to increase the bus voltage by one step.

[0031] Figure 3 In the diagram, VBAT is the power supply; the FB_AD terminal is used to acquire the voltage of the FB pin of the DC-DC power chip U3 in real time.

[0032] The VBUS_IN_ADC terminal is the bus voltage sampling signal terminal, which is connected to the ADC sampling chip (such as model ADS1115IDGSR, not shown in the figure). Specifically, the VBUS_IN_ADC terminal samples the bus voltage signal (analog quantity), and then the ADC sampling chip (model ADS1115IDGSR) converts this signal into a digital quantity and transmits it to the microcontroller.

[0033] The VBUS terminal is the bus voltage output terminal.

[0034] A general testing method for detonators includes the following steps:

[0035] S1. The PDA handheld device communicates sequentially with the delay control module of 10 electronic detonators under test through the communication interface module. The microcontroller charges the capacitor inside the delay control module of the electronic detonator under test, and then discharges the capacitor inside the delay control module of the electronic detonator under test to ignite the ignition resistor. After ignition, the sensitivity detection module detects whether ignition has occurred.

[0036] S2. The sensitivity detection module detects whether there is a detonation signal. If the current electronic detonator under test delay control module fires and a detonation signal is detected, the detonation signal is transmitted to the microcontroller. After receiving the detonation signal, the microcontroller outputs a control signal to the bus voltage rise / fall module to automatically decrease the bus voltage by one step. If the current electronic detonator under test delay control module does not fire and the sensitivity detection module detects a non-detonation signal, the non-detonation signal is transmitted to the microcontroller. The microcontroller outputs a control signal to the bus voltage rise / fall module to automatically increase the bus voltage by one step.

[0037] The sensitivity detection module detects both light and sound signals. If the sensitivity detection module detects both light and sound signals, it determines that a detonation signal has been detected. If the sensitivity detection module detects neither light nor sound signals, it determines that a non-detonation signal has been detected.

[0038] S3. For the next electronic detonator delay control module to be tested, repeat step S2 until all electronic detonator delay control modules to be tested have been tested.

[0039] This invention upgrades the original single-shot experiment support to multi-shot experiment support (e.g., 10 channels), which improves work efficiency; it also supports automatic adjustment of bus voltage, thereby reducing manual voltage adjustment, human interference, and avoiding human judgment errors. In addition, the communication interface module enables communication and simultaneous activation of the ignition resistor, which can truly reflect the actual working mode and the obtained data is more consistent with actual usage.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A universal detonator testing device, characterized in that, This includes a PDA handheld device that is communicatively connected to the delay control module of the electronic detonator under test. The PDA handheld device comprises a control module, a sensitivity detection module, a bus voltage boosting / lowering module, and a communication interface module. The communication interface module is connected to the delay control module of the electronic detonator under test and is used to realize signal communication; The sensitivity detection module is connected to the communication interface module and is used to detect whether there is a detonation signal. The control module is connected to the bus voltage rise / fall module, the sensitivity detection module, and the communication interface module. It is used to send a control signal to decrease the bus voltage if a detonation signal is detected, and to send a control signal to increase the bus voltage if no detonation signal is detected, based on the signal output by the sensitivity detection module. The bus voltage adjustment module is used to adjust the bus voltage according to the control signal output by the control module.

2. The universal detonator testing device according to claim 1, characterized in that, The sensitivity detection module includes an amplifier U1, a comparator U2, capacitors C1 to C6, resistors R1 to R9, and a Zener diode DZ1. Pin 3 of the amplifier U1 is connected to the photodetector. One end of resistor R7 is connected to one end of resistor R1, and the other end of resistor R7 is connected to the control module. One end of resistor R5 is connected to one end of resistor R6 and one end of capacitor C5, and this connection point GS is connected to the control module. One end of resistor R8 is connected to one end of resistor R9 and one end of capacitor C6, and this connection point SG is connected to the control module.

3. The universal detonator testing device according to claim 1, characterized in that, The bus voltage boosting module includes a DC-DC power chip U3, operational amplifiers U4A and U4B, amplifier U5, capacitors C7 to C15, resistors R10 to R22, Zener diodes DZ2 and DZ3, and inductor L1. One end of resistor R10 is connected to one end of resistor R11, and the other end of resistor R10 is connected to the control module.

4. A universal testing method for detonators, characterized in that: Using a universal detonator testing device as described in any one of claims 1 to 3, the method includes the following steps: S1. The PDA handheld device communicates with the delay control module of the electronic detonator under test simultaneously through the communication interface module. S2. The sensitivity detection module detects whether there is an ignition signal. If the current electronic detonator under test is ignited by the delay control module, the ignition signal is detected. The control module outputs a control signal to the bus voltage rise and fall module to decrease the bus voltage by one step. If it is not ignited, the non-ignition signal is detected. The control module outputs a control signal to the bus voltage rise and fall module to increase the bus voltage by one step. S3. For the next electronic detonator delay control module to be tested, repeat step S2 until all electronic detonator delay control modules to be tested have been tested.

5. The universal testing method for detonators according to claim 4, characterized in that, The sensitivity detection module detects both light and sound signals. If the sensitivity detection module detects both light and sound signals, it determines that a detonation signal has been detected. If the sensitivity detection module detects neither light nor sound signals, it determines that a non-detonation signal has been detected.

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